how to convert cell vector to char vector?

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Luca Tognetti
Luca Tognetti on 6 Dec 2022
Edited: DGM on 6 Dec 2022
hi, i would like to convert a cell vector which is:
1509
1803
'V20E'
1706
1706
'V21N'
1507
1927
to a char vector. then i need to "read" only the second and third character, for example from 1509 to 50.

Answers (1)

DGM
DGM on 6 Dec 2022
Edited: DGM on 6 Dec 2022
If there's little control over what's in the cell array, here's one way. This can probably be simplified.
C = {1509; 1803; 'V20E'; 1706; 1706; 'V21N'; 1507; 1927};
charout = repmat(' ',[numel(C) 2]); % preallocate
for k = 1:numel(C)
if isnumeric(C{k}) && isscalar(C{k})
cc = num2str(C{k});
elseif ischar(C{k}) && isvector(C{k})
cc = C{k};
else
error('C(%d) is neither a scalar number nor a char vector',k)
end
charout(k,:) = cc(2:3);
end
charout
charout = 8×2 char array
'50' '80' '20' '70' '70' '21' '50' '92'
If the output needs to be a vector, just use reshape().
charout = reshape(charout.',[],1).'
charout = '5080207070215092'

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